Yours - Su or tu ?
How do you say "Yours "
por ejemplo - Tu madre , Su madre . I see subtitles of movies where yours is said at times as "su" and at times as "tu"
2 Answers
Su is the Usted for of your Tu is the tú form of.
It would depend on you are talking to. A friend you say "tu madre" whereas to a stranger you would say "Su madre" . I hope this helps.
"Su madre" = your mother (formal usted)
"Tu madre" = your mother (informal)
P.s. "su madre" can also mean his/her/its mother depending on the context.